Direction plus, ProVent oil separator kits protect your modern diesel engine by sustainably reducing the amount of oil entering the engine from blow-by gas in the crankcase ventilation system.
The problem is compounded with modern engines fitted with exhaust gas recirculation systems (EGR) whereby a proportion of the exhaust gas is routed back into the engine. With the presence of oil from the crankcase ventilation system, the oil collects the exhaust particles. The combination of oil and exhaust particles from the EGR build up to a point where it blocks inlet manifolds and valves, resulting in reduced engine performance or failure.
By not fitting a Direction Plus ProVent system, it is likely that your engine will experience a progressive reduction in performance. The images below are typical examples of the build-up in engines not fitted with a Direction Plus ProVent system.
Direction Plus ProVent systems, are specifically designed for its ability to separate and redirect oil and air from blow-by gas produced from within the crankcase. The Direction Plus ProVent system also provides the option of returning the oil back to the sump.